Ornamental louver



FIG. 1 is a perspective view of a louver according to the principles ofthe present invention;

FIG. 2 is a left end view thereof, a right end view not being shown, asit is a mirror image of the left end view;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a top plan view thereof.

The ornamental design for an ornamental louver, as shown and described.